The typical construction of a leather/vinyl combination is to use leather on those areas that come in contact with your body - the seat cushion top, the inside backrest and the tops of the armrests.
(Answer #1). Human excretion is the process of removing excess water, waste material and harmful substances fro human body. The organs involved in human excretion are listed below. 1  Skin: It removes excess water,salt ans some other substances from the body. 2  It also removes excess heat from the body.3  Lungs: These remove carbon dioxide and some moisture from the body. 4  Kidneys: It removes many different waste material and harmful substances.he organs involved in human excretion are listed below. 1  Skin: It removes excess water,salt ans some other substances from the body. 2  It also removes excess heat from the body. 3  Lungs: These remove carbon dioxide and some moisture from the body.
With the exception of some aquatic insects, the filaments and lamellae (folds) contain blood or coelomic fluid, from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body.Carbon dioxide passes from the blood through the thin gill tissue into the water.Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians.n the larval dragon fly, the wall of the caudal end of the alimentary tract (rectum) is richly supplied with tracheae as a rectal gill, and water pumped into and out of the rectum provides oxygen to the closed tracheae.